Note-sheet-changing device for pneumatic musical instruments.



w. REiCHEL & G. K. HENNIG.

NOTE SHEET CHANGING DEVICE FOR PNEUMATIC MUSICAL INSTRUMENTS.

APPLICATION FILED MAY 4. NH.

1,158,288. Patented 00m. 26, 1915.

f ALT R, nE IcHEL D GUSTAV KARL nnN Io, or BonLITz-nnnnNBEnG, NEARLEIPZIG, GERMANY, ASSIGNOBS To LUDWIG nurrnnn AKTIENGESELLSCHAFT,

' outside themagazine and to'lead them 'to 0F BfiI-ILITZ-EHRENBERQIIEARLEIPZIG, GERMANY.

No n-sHnnT-c A GING DEVICE r012. PNEUMATIC MUSICAL INSTRUMENTS.

Specification of Letters Patent.

Patented oet. 2c, 1915.

p I Application filed 10313 4, 1914. Serial No. 836,214.

To all whom itmayfooncemf Beii; known thatwe, WALTER litnron'nn, asubject of the King.of;Sa ony,res1d1ng at Gutenbergstrasse,BtihlitzsEhrenberg, near Leipzig, Germany, andGUs Av KAR 'HEN- NIG, avsubject of the King offfiaxony, residing at 1" Bielastrasse,:Btihhtz-Ehrenberg, near Leipzig, Germany, have invented certa1n new anduseful Improvements in Note-Sheet- Changing Devices .for Pneumeans ofnote sheet rolls. I v The device not only enables the 'IIIUSICEL].

instrument toi'be played continuously but it also allows during thisplaying-of changing the piece to be played. For this purpose a carrier;for note, sheets preferably a V drum of .a a kind wellaknown,carryingtwo or more rolls of note'sheets-is-employed, ;on

which are arranged the'sh'eetsto'be played;

. these rolls can be brought infturnin a well known manner into theplaying-position;

- It has heretofore-been proposedto draw 1 the note sheets ofgsuch amagazine carrying several rolls over a tracker bar arranged a winding-uproller. l. r p v ;.-,The devicejaccording to this invention differs fromknown-devices of this type in that instead of onewinding-up roll beingprovided for all the note sheet. rolls several winding-up rollersareprovi'ded which can operate in turn: and each of which; draws one,note sheet over a tracker bar while a sheet which hasbeen played canbe'rewound.

this manner a 'note'sheetchange-device is provided such that it is.;nolonger necessary to wait forthemusic which has been played to berewound, but, one roll can be played after the othenwithout'interruption. The rolls maycontain'parts of-very long pieces ordifferentpieces as desired.

Severalillustrative embodiments of the i invention are diagrammaticallyrepresented by way of example in the accompanying drawing, wherein':'

Figure 1 is an elevation showing a not a stationary frame 6 mounted ontheaxle c 1ournaled1n a sta- -t1onary-1ramec is provided separate fromsheet winding up device comprising a rotatable arm carrying two rollers.Fig. 2 is a likeview showing another form of the device'in which thecarrier of the winding up rollers is star-shaped. Fig. 3 shows a third-form comprising a number of winding up rollers displaceable in an ovalguide, and

shows'a fourth term comprlsing two wlndlng up rollers disposed atthe twosides -of-the magazine-of the note sheet rolls. matic MusicalInstruments; andj we do hereby declare the following to be a full,

Referringfirst-to Fig. 1, a number of note sheets wound on rolls a to aare arranged on a rotatable drum-shaped magazine Z) of knownconstruction. The carrier is rotatable 1n known manner about the axle bof A rotatable arm 0 the magazine. Winding up rollers 03 and d aremountedron the two ends-of this arm. Between the rotatable arm 0 and themagajzine Z) is a tracker bar 6 over which'the sheet'o to be'played ispassed,as indicated by the full'li'n'e. The tracker bar is mounted inany desiredsuitable manner and is pro fvide'd, as usual, with tubularconnections 6 which lead to the instrument to be played.

The sheet o is conveyed from the rolls a too of the magazine to thewinding up rollers (Z d by known means and the driving mechanism forplaying andrewinding the note-sheets is also known, so that the parts ofthe mechanism in question are not shown-in the drawing. When the sheet 0has been played the drum is turned in the dire-ctionof the arrow untilthe roll a arrives into the position previously occupied by the roll aThe arm' 0 is turned;

180 at the-same time so that the roller d the roller d Thesheet then.occupies the position shown in the dotted lines and can now'be rewoundon its roll a which now occupies the position previously occupied by theroll a. At the same time as the sheet is being ,wound back on the roll athe sheet of the roll a is pulled overjthetracker bar e and wound up onthe roller 6Z2. Conoccupies the position previously occupied by whichhas just been played being wound back. The rotatable carrier 0 of thewinding-up rollers (Z (Z can be secured in its position at any time byany suitable looking device, 0. g. by means of a springpressed pin 7'which snaps into recesses in a disk 7'.

Referring now to Fig. 2, the rotatable carrier for the winding-uprollers may carry several such rollers instead of only two thereof.Preferably the carrier will carry as many rollers as the magazine hasnote sheet rolls. As shown in the figure, the carrier 0 for the rollers(l to (Z may be formed exactly like the carrier of the magazine. In thesame manner the carrier 0- can be locked in its position by means of aspring-pressed pin 7.

In the embodiment shown in Fig. 3 the note sheet rolls and thewinding-up rollers are displaceable in oval guides 79 and g,respectively. The rollers (Z to (Z are displaceable in the guide 7) andthe rolls a to a in the guide 9. The note sheet rolls and the winding-uprollers are shifted simultaneously by means of gear-wheels 72 and 9which when rotating in the direction indicated by the arrows engage withthe axles of the rolls a and rollers (Z and with the intermediateantifriction rollers 39 and slidable in the oval guides. After a sheet 0which is pulled over the stationary tracker bar a has been played, thenote sheet rolls and rollers are shifted in such manner that one sheetis always ready for being played on the tracker bar located between theguides, while the sheet which has been played and is removed from thetracker bar is being rewound as indicated by dotted lines.

In the embodiment shown in Fig. 4 the winding up rollers (Z (Z are notarranged on one common carrier, but are rotatably mounted apart at thetwo sides of the magazine on separate stationary supports 0, 0 In thiscase separate tracker bars 6 c are provided for each roller (Z (1respectively. The two tracker bars may act on the same or on severalmusical instruments, e. g. piano, violin or the like, and can be broughtinto and out of operative connection with the same, so that only thattracker bar of the sheet just being played is connected with a musicalinstrument.

WVhen the sheet 0 is being played, it is in the position indicated infull lines and is being unwound from roll a onto roll al the tracker bara being connected with the musical instrument. During the playing ofsheet 0 sheet 0 is in the position indicated by dotted lines 0 and isbeing unwound from roll 652 onto roll a the tracker 6 being disconnectedfrom the instrument. At the end of the playing of sheet 0 and theunwinding of sheet 0 the tracker bar e is disconnected, the tracker bar6 connected to the musical instrument, and the carrier 6 rotated tobring the roll a into the position indicated by roll a on the drawing,and the sheet '0 will be unwound from roll 6Z back onto roll (L asindicated by the dotted line 0 and out of playing position. The rotationof the carrier 1) brought the roll a into the position indicated by rolla and the sheet '0 being in playing position, as indicated by the fullline 0 is unwound from roll 54 onto roll (1 Then the-sheet 0 on roll ahas been played, the carrier bis again rotated the distance between tworolls so that the roll a is moved into the position indicated by rollatan'd the roll a will be in the position indicated by roll a Thus, ifthe sheet on rolla is first played over the tracker bar '6 the sheet onroll (1, is next played over tracker bar 6 and after the sheet on roll ahas been played the sheet on roll a will next be played over tracker-bar0 said roll a being brought into playing position when the roll a isbrought into position for rewinding, 2'. e. the position of roll a shownon the drawing.

We claim as our invention:

1. A note sheet changing device for pneumatic musical instrumentscomprising a carrier, a plurality of rolls of note sheets mountedthereon, a plurality of winding rolls independent of the carrier, andmeans located between the latter and said winding rolls for controllingthe playing of the mu sical instrument when the note sheet to be playedpasses over it.

2. A note sheet changing device for pneumatic inusicalinstruments,comprising a rotatable carrier for a plurality of note sheet rolls, anindependent movable carrier for a plurality of Winding rolls, and atracker bar located between said carriers for controlling the playing ofthe musical instrument when a note sheet to be played passes over it.

3. A note sheet changing device for pneumatic musical instruments,comprising a rotatable carrier for a plurality of note sheet rolls, aseparate rotatable carrier for a plurality of winding up rolls, and atracker bar located between said carriers for controlling the playing ofthe musical instrument when a note sheet to be played passes over it.

4. A note sheet changing device for pneumatic musical instruments,comprising a rotatable carrier for a plurality of note sheet rolls, aseparate movable carrier for a pluralitv of winding up rolls, means forlooking the latter carrier in operative positions at any time, and atracker bar located between said carriers for controlling the playing ofthe musical instrument when a note sheet to be played passes over it.

5. In a note sheet changing device for pneumatibally actuated musical.instruments,

pneumatically actuated musical instruments,

' the combination with a movable magazine for a plurality of note sheetrolls, and a tracker bar, of a plurality of winding rolls, one of whichis arranged to withdraw a note sheet from a roll in the magazine overthe tracker bar during the time that another of said winding rolls isdelivering a previously played sheet for rewinding out of playingposition and distant from said tracker bar. a

7. In a note sheet changing mechanism for pneumatically actuated musicalinstruments, a movable carrier for a plurality of note sheet rolls, andwinding rolls separate from the carrier, one of the rolls in the carrierpositioned to unwind onto a Winding roll for playing the instrument andanother roll on the carrier positioned to simultaneously'receive a notesheet from a winding roll.

8. In a note sheet changing mechanism for pneumatically actuated musicalinstruments,

a movablevcarrier for a plurality of note sheet rolls, a plurality ofwinding rolls independent of the carrier, one of said note sheet rollscooperating with a winding roll in the tracking position of a note.sheet for playing the piece, and another of said winding rollscooperating with another of said note sheet rolls, while out of trackingposition, for sini'ultaneously rewinding a previously played 7 notesheet. p

In testimony whereof we have slgned our names to this specification, inthe presence'of' two subscribing witnesses.

WALTER REICHEL. GUSTAV KARL HENNIG. Witnesses: V e

' EMIL GA DTNER,

RUDOLPH FRIoKn.

Copies of this patent may be obtained for five cents each,'by addressingthe Commissioner of Patents,

' Washington, 1). 6.

